Error # 45 means the retractable lens is stuck, possibly caused by a drop or sand or other gunk that has jammed the gears. It will cost more to have repaired than the camera is worth, so you have nothing to loose by trying this. Hold the camera in your strong hand with the lens away from you and smack it hard into the palm of your other hand (if you can't take pain maybe use the heel of a shoe) pretty hard. It may take several tries. Best results - smack camera immediatly after turning off.